Foul Presence
1B
Enchantment Creature - Spirit
Deathtouch
Requiem (When ~ dies if it is a creature return it to the battlefield enchanting target creature. It is no longer a creature.)
Enchanted creature has deathtouch.
1/1

Dream diffusion
1B
Instant
As an additional cost to cast ~ sacrifice an enchantment
Draw two cards and you gain 4 life.

Corpse Tithe
2B
Enchantment
At the beginning of each players upkeep they must sacrifice a creature or an enchantment.

Even in an enchantment world I don't think it makes much sense for black to get enchantmentcraft or enchantmentfall style mechanics but a sacrifice enchantments theme seems right up black's alley.
I think it would be fun to build around in draft and requiem seems like a mechanic that could produce constructed level cards.